A narrow beam of sodium yellow light, with wavelength 589 nm invacuum, is incide

Question

A narrow beam of sodium yellow light, with wavelength 589 nm invacuum, is incident from air onto a smooth water surface at anangle of incidence of 40 degrees. What is the angle of refractionin degrees?

A)40 degrees
B)25.5 degrees
C)28.8 degrees
D)22.8 degrees
E)none of the above Hint: nisini=ntsint.
ni = 1, look up the index of refraction of water in thetextbook. i= 40 deg,find t.

A)40 degrees
B)25.5 degrees
C)28.8 degrees
D)22.8 degrees
E)none of the above Hint: nisini=ntsint.
ni = 1, look up the index of refraction of water in thetextbook. i= 40 deg,find t. Hint: nisini=ntsint.
ni = 1, look up the index of refraction of water in thetextbook. i= 40 deg,find t.

Explanation / Answer

A)40 degrees
B)25.5 degrees
C)28.8 degrees
D)22.8 degrees
E)none of the above option C is correct
nisini=ntsint.
ni = 1, look up the index of refraction of water in thetextbook. i= 40 deg,find t.
1.33=sin40/sinr
so angle of refraction=28.90degree.
option C is correct
nisini=ntsint.
ni = 1, look up the index of refraction of water in thetextbook. i= 40 deg,find t.
1.33=sin40/sinr
so angle of refraction=28.90degree.

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